ST-1KA

The ST-1KA is designed as one kind of high sensitivity NPN silicon phototransistor that mounted in durable, hermetically sealed TO-18 metal cans, which provides years of reliable performance, even under demanding conditions such as use out-doors. Features of the ST-23G are:(1)wide angular response;(2)durable;(3)high reliability in demanding environments;(4)two leads (collector, emitter) ST-1KA;(5)three leads (collector emitter, base) ST-1KB. And this device can be used in infrared sensors, optical counters and optical detectors, fiber optic communications applications.

The absolute maximum ratings of the ST-1KA can be summarized as:(1)C-E voltage: 40 V;(2)E-C voltage: 4 V;(3)collector current: 50 mA;(4)collector power dissipation: 150 mW;(5)storage temperature: -30 to +100 ;(6)storage temperature: -50 to +150 ;(7)soldering temperature: 260 .

And the electrical characteristics of this device can be concluded into several points:(1)collector dark current: 1 to 200 nA;(2)light current: 0.5 to 5.0 mA;(3)C-E saturation voltage: 0.2 to 0.4 V;(4)switching speeds rise time: 0.8 usec;(5)switching speeds fall time: 10 usec;(6)spectral sensitivity: 500 to 1050 nm;(7)peak wavelength: 880 nm;(8)half angle: +/- 50 deg. If you want to know more information about the ST-1KA, please download the datasheet in www.seekic.com or www.chinaicmart.com .